31-08-2017, 01:56 PM
EDM machining is a process of removal of material by melting, vaporization and erosion, reserved essentially for conductive and semiconductive materials. It can be used for the machining of metals and alloys, tempered steels, different types of ceramic alloys, other metal carbides and even for harder materials such as polycrystalline diamond, etc. The objective of this work is to develop a mathematical model for the effect of cutting parameters in the machining by electro-discharge machining widely used in industrial applications.
Design / methodology / approach: This is a study and detailed analysis of the cutting conditions in the machining by electroerosion of 42CD4-42CrMo4 steel on the surface quality of the pieces. The statistical method of analysis of variance "ANOVA" allows to release the considerable effects of the cutting parameters on the performance criteria of EDM machining. The result of the study shows that the nature of the electrode used and the different grades of the materials machined by Electro Discharge Machining, EDM, considerably influence the volume of material removal and the surface quality of the produced parts. However, the more the resistivity of the electrode increases, the more the relative wear of the electrode and the more the removal volume of the material will decrease. Limitations / implications of the research: This study needs more experimental results for the evaluation of the cutting parameters in detail and to introduce them in the model developed here.
Design / methodology / approach: This is a study and detailed analysis of the cutting conditions in the machining by electroerosion of 42CD4-42CrMo4 steel on the surface quality of the pieces. The statistical method of analysis of variance "ANOVA" allows to release the considerable effects of the cutting parameters on the performance criteria of EDM machining. The result of the study shows that the nature of the electrode used and the different grades of the materials machined by Electro Discharge Machining, EDM, considerably influence the volume of material removal and the surface quality of the produced parts. However, the more the resistivity of the electrode increases, the more the relative wear of the electrode and the more the removal volume of the material will decrease. Limitations / implications of the research: This study needs more experimental results for the evaluation of the cutting parameters in detail and to introduce them in the model developed here.